The effect of dietary vitamin B6 on tissue fat contents and lipid composition in livers and gills of Atlantic salmon (Salmo salar)

Albrektsen, Sissel; Hagve, Tor‐Arne; Lie, Ø.

doi:10.1016/0300-9629(94)90144-9

Cited by 12 publications

(19 citation statements)

References 26 publications

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“…SAM/SAH measurement was adapted from She et al [55] with separation on a Revolve C18 at 40 • C with the following gradient: 0-10 min 95% A, 5% B; 20 min 30% A, 70% B; 35-45 min 95% A, 5% B with (A) 20mM phosphate buffer with 8mM OSA (pH 2.7, TFA adjusted) and (B) methanol. In 0.1 g of pooled whole-body swim-up fry, pyridoxine, pyridoxal and pyridoxamine were measured by ultra-performance liquid chromatography (UPLC) [56] and vitamin B12 and total folate were analyzed microbiologically using Lactobacillus delruceckii ssp. lactis and Lactobacillus rhamnosus, respectively, as previously described [57].…”

Section: Metabolite Analysismentioning

confidence: 99%

Parental Selenium Nutrition Affects the One-Carbon Metabolism and the Hepatic DNA Methylation Pattern of Rainbow Trout (Oncorhynchus mykiss) in the Progeny

Wischhusen

Saito

Héraud

et al. 2020

Life

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Selenium is an essential micronutrient and its metabolism is closely linked to the methionine cycle and transsulfuration pathway. The present study evaluated the effect of two different selenium supplements in the diet of rainbow trout (Onchorhynchus mykiss) broodstock on the one-carbon metabolism and the hepatic DNA methylation pattern in the progeny. Offspring of three parental groups of rainbow trout, fed either a control diet (NC, basal Se level: 0.3 mg/kg) or a diet supplemented with sodium selenite (SS, 0.8 mg Se/kg) or hydroxy-selenomethionine (SO, 0.7 mg Se/kg), were collected at swim-up fry stage. Our findings suggest that parental selenium nutrition impacted the methionine cycle with lower free methionine and S-adenosylmethionine (SAM) and higher methionine synthase (mtr) mRNA levels in both selenium-supplemented treatments. DNA methylation profiling by reduced representation bisulfite sequencing (RRBS) identified differentially methylated cytosines (DMCs) in offspring livers. These DMCs were related to 6535 differentially methylated genes in SS:NC, 6890 in SO:NC and 7428 in SO:SS, respectively. Genes with the highest methylation difference relate, among others, to the neuronal or signal transmitting and immune system which represent potential targets for future studies.

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Section: Metabolite Analysismentioning

confidence: 99%

Parental Selenium Nutrition Affects the One-Carbon Metabolism and the Hepatic DNA Methylation Pattern of Rainbow Trout (Oncorhynchus mykiss) in the Progeny

Wischhusen

Saito

Héraud

et al. 2020

Life

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“…Pyridoxine deficiency in salmon fingerlings is characterized by increased mortality, 'shock syndrome' behavioural changes, degenerative changes in kidneys, ovary and liver, paucity of the thyroid colloid and hyperplasia of haematopoietic tissue in the kidney (Herman, 1985). In addition, Albrektsen et al (1994a) showed that deficient fingerlings had reduced lipid content in the muscle, reduced n-3 PUFA in liver phosphatidylethanolamine and phosphatidylcholine and reduced activity of aspartate aminotransferase in the liver. The requirement for pyridoxine in juvenile salmon is covered by adding 5 mg kg −1 to a practical fish-meal-based diet (Albrektsen et al, 1994a).…”

Section: Water-soluble Vitaminsmentioning

confidence: 99%

“…In addition, Albrektsen et al (1994a) showed that deficient fingerlings had reduced lipid content in the muscle, reduced n-3 PUFA in liver phosphatidylethanolamine and phosphatidylcholine and reduced activity of aspartate aminotransferase in the liver. The requirement for pyridoxine in juvenile salmon is covered by adding 5 mg kg −1 to a practical fish-meal-based diet (Albrektsen et al, 1994a).…”

Section: Water-soluble Vitaminsmentioning

confidence: 99%

Atlantic salmon, Salmo salar .

Storebakken¹

2002

Nutrient Requirements and Feeding of Finfish for Aquaculture

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“…The current results point to an active oxidation also of 20:5n-3 in the Atlantic salmon liver. Moreover, activity of the ∆6and ∆5-desaturation enzymes has been established in Atlantic salmon liver (Albrektsen et al 1994) and in fibroblastlike Atlantic salmon cells (Tocher & Dick 1990a,b). The decreased 20:5n-3 and increased 22:6n-3 levels in liver compared with the diets can thus be related to the ∆6-desaturation, elongation and retroconversion of 20:5n-3 to 22:6n-3 in the liver.…”

Section: Livermentioning

confidence: 99%

Effects of dietary levels of 20:5n-3 and 22:6n-3 on tissue lipid composition in juvenile Atlantic salmon, Salmo salar , with emphasis on brain and eye

Brodtkorb

Rosenlund²,

Lie

1997

Aquaculture Nutrition

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Four dietary groups of juvenile Atlantic salmon, Salmo salar L., each with three replicates, were fed diets with increasing levels of docosahexaenoic acid (22:6n‐3; DHA) and eicosapentaenoic acid (20:5n‐3; EPA). Fatty acid composition of brain and eye was determined at the start and approximately every 3 weeks during the experimental period, and fatty acid composition of liver and fillet was determined in fish from the final sampling. Lipid class composition of brain and eye, and fatty acid composition of these lipid classes was determined at the end of the experiment. There was no effect of increasing dietary DHA content on fatty acid composition, lipid class composition or DHA levels in the lipid classes in the juvenile Atlantic salmon brain. The increasing dietary EPA content, however, was reflected in both the total fatty acid composition and in the EPA content in neutral lipids, phosphatidylcholine (PC), phosphatidylethanolamine (PE) and phosphatidylinositol (PI). A minor effect of the increasing dietary DHA content was found in the lipid composition of the juvenile salmon eye. Both EPA and 18:2n‐6 levels in eye, however, clearly reflected the increasing and decreasing, respectively, dietary levels of these two fatty acids. The dietary EPA levels also affected the EPA levels in neutral lipids, PC, PE, PI and PS (phosphatidylserine) in the juvenile salmon eye. The results demonstrate that these dietary levels of DHA had no effect on brain lipid composition and only a minor effect on eye lipid composition. Furthermore, the dietary EPA levels significantly affected the lipid composition of both brain and eye. The fillet fatty acid composition reflected the dietary fatty acid composition, except for the DHA/EPA ratio, which was reversed in fillet compared with that in the diets. The liver fatty acid composition was also affected by the increasing dietary EPA and DHA levels.

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The effect of dietary vitamin B6 on tissue fat contents and lipid composition in livers and gills of Atlantic salmon (Salmo salar)

Cited by 12 publications

References 26 publications

Parental Selenium Nutrition Affects the One-Carbon Metabolism and the Hepatic DNA Methylation Pattern of Rainbow Trout (Oncorhynchus mykiss) in the Progeny

Parental Selenium Nutrition Affects the One-Carbon Metabolism and the Hepatic DNA Methylation Pattern of Rainbow Trout (Oncorhynchus mykiss) in the Progeny

Atlantic salmon, Salmo salar .

Effects of dietary levels of 20:5n-3 and 22:6n-3 on tissue lipid composition in juvenile Atlantic salmon, Salmo salar , with emphasis on brain and eye

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